SH3000
Description
The programmable SH3000 MicroBuddy™ (µBuddy™) provides all mandatory microcontroller support functions: CPU Supervisor Clock Management System Real Time Support Auxiliary functions Three components make a complete system: any microcontroller, the SH3000, and a bypass capacitor. This low-cost system would consume very little power and have clock-frequency accuracy of ±0.5%.
Key Features
- Highly integrated IC - 3mm x 3mm x 0.9 mm 16-lead MLP (QFN) package CPU Supervisor - Low VDD reset programmable from 2.3 V to 4.3 V - Watchdog timer with programmable timeout periods - Both active-high and active-low reset outputs Clock Management System - Replaces High-Frequency (HF) crystal or resonator - Programmable clock output from 32 kHz to 16 MHz - Speed shift between multiple clock frequencies - Adjustable spectrum spreading for EMI reduction - Directly supports microcontroller STOP function - Deep sleep with instantaneous auto-wakeup Real Time Support - 179-year real time clock, battery backup capable - Dedicated 32 kHz buffered clock output - Built-in trim for 32.768 kHz oscillator to ± 4ppm - Programmable periodic interrupt / wakeup timer Auxiliary functions - 4-byte (32-bit) scratchpad RAM, loaded on reset with factory-set value (zero or optional ID code) - All settings programmable in real-time, defaults restored from OTP memory on reset Operates from 2.3 V to 5.5 V IDD <850µA / 2MHz, <3mA / 16MHz, <10µA/standby IBUP <2µA / IBSB <50nA (battery backup / standby) Protected by issued and pending US and International Patents * * * * * *
